limit Android test tasks to first 4 cores

Read 'f' as 0b1111 or 0b00001111.

This is a hack so I don't have to keep plugging and unplugging my Pixel
3 when I get texts or want to change the music, letting me instead use
a Galaxy S9 with the first few cores good for FP16 and the last bad.

Change-Id: Id8d5e481a430deb28cc0d6f9cc767b75a96313e0
Commit-Queue: Brian Osman <>
Reviewed-by: Brian Osman <>
Auto-Submit: Mike Klein <>
1 file changed